Commit 87383ac5 authored by Charles Keepax's avatar Charles Keepax Committed by Mark Brown
Browse files

ASoC: arizona: Add defines for FLL configuration constants 



Improve readability by adding defines for some of the constants
associated with FLL configuration.

Signed-off-by: default avatarCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent da28ed58

sound/soc/codecs/arizona.c

+11 −5
Original line number Diff line number Diff line
@@ -53,6 +53,12 @@ 
#define ARIZONA_AIF_RX_ENABLES                  0x1A

#define ARIZONA_AIF_FORCE_WRITE                 0x1B



#define ARIZONA_FLL_MAX_FREF   13500000

#define ARIZONA_FLL_MIN_FVCO   90000000

#define ARIZONA_FLL_MAX_REFDIV 8

#define ARIZONA_FLL_MIN_OUTDIV 2

#define ARIZONA_FLL_MAX_OUTDIV 7



#define arizona_fll_err(_fll, fmt, ...) \

	dev_err(_fll->arizona->dev, "FLL%d: " fmt, _fll->id, ##__VA_ARGS__)

#define arizona_fll_warn(_fll, fmt, ...) \
@@ -1390,11 +1396,11 @@ static int arizona_calc_fll(struct arizona_fll *fll, 
	/* Fref must be <=13.5MHz */

	div = 1;

	cfg->refdiv = 0;

	while ((Fref / div) > 13500000) {

	while ((Fref / div) > ARIZONA_FLL_MAX_FREF) {

		div *= 2;

		cfg->refdiv++;



		if (div > 8) {

		if (div > ARIZONA_FLL_MAX_REFDIV) {

			arizona_fll_err(fll,

					"Can't scale %dMHz in to <=13.5MHz\n",

					Fref);
@@ -1406,10 +1412,10 @@ static int arizona_calc_fll(struct arizona_fll *fll, 
	Fref /= div;



	/* Fvco should be over the targt; don't check the upper bound */

	div = 2;

	while (Fout * div < 90000000 * fll->vco_mult) {

	div = ARIZONA_FLL_MIN_OUTDIV;

	while (Fout * div < ARIZONA_FLL_MIN_FVCO * fll->vco_mult) {

		div++;

		if (div > 7) {

		if (div > ARIZONA_FLL_MAX_OUTDIV) {

			arizona_fll_err(fll, "No FLL_OUTDIV for Fout=%uHz\n",

					Fout);

			return -EINVAL;